Heat spreader



FIG. 1 is a perspective view of a heat spreader depicting our newdesign;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is an end view thereof;

FIG. 5 is an opposite end view thereof;

FIG. 6 is a side view thereof;

FIG. 7 is an opposite side view thereof; and,

FIG. 8 is an additional perspective view thereof.

The broken lines shown in the figures illustrate the portions of thedesign that form no part of the claimed design.

CLAIM The ornamental design for a heat spreader, as shown and described.